Communication method and communications device thereof

Abstract

This application provides a communication method. The communication method includes: obtaining, by the database network element, training data, where the training data includes service transmission data and network data; sending, by the database network element, the training data to the data analytics network element; and receiving, by the database network element, first information from the data analytics network element, where the first information includes a first feature index list set, a service identifier corresponding to each feature index list in the first feature index list set, and a DNN corresponding to the service identifier.

What is claimed is: 
     
       1. A communication method, comprising:
 obtaining, by a database network element, training data, wherein the training data comprises service transmission data and network data; 
 sending, by the database network element, the training data to a data analytics network element; 
 receiving, by the data analytics network element, the training data from the database network element; 
 determining, by the data analytics network element, first information based on the training data, wherein the first information comprises a first feature index list set, a service identifier corresponding to each feature index list in the first feature index list set, and a data network name (DNN) corresponding to the service identifier; sending, by the data analytics network element, the first information to the database network element; and 
 receiving, by the database network element, the first information from the data analytics network element. 
 
     
     
       2. The communication method according to  claim 1 , wherein the first information further comprises at least one of the following information corresponding to each feature index list in the first feature index list set: a network slice type, a session and service continuity (SSC) mode, and a packet data unit (PDU) session type. 
     
     
       3. The communication method according to  claim 1 , wherein the communication method further comprises:
 sending, by the database network element, the first information to a control plane network element. 
 
     
     
       4. The communication method according to  claim 1 , wherein the communication method further comprises:
 receiving, by the database network element from a control plane network element, a DNN corresponding to a first session; 
 querying, by the database network element, the first information based on the DNN corresponding to the first session, to obtain second information, wherein the second information comprises a second feature index list set corresponding to the DNN corresponding to the first session and a service identifier corresponding to each feature index list in the second feature index list set; and 
 sending, by the database network element, the second information to the control plane network element. 
 
     
     
       5. The communication method according to  claim 4 , wherein the communication method further comprises:
 receiving, by the database network element from the control plane network element, at least one of the following information corresponding to the first session: a network slice type, an SSC mode, and a PDU session type; and 
 wherein the querying, by the database network element, the first information based on the DNN corresponding to the first session, to obtain second information comprises querying, by the database network element, the first information based on the DNN corresponding to the first session and the at least one of the information corresponding to the first session, to obtain the second information. 
 
     
     
       6. The communication method according to  claim 1 , wherein the communication method further comprises:
 receiving, by the database network element, third information from a user plane network element, wherein the third information comprises a first service identifier set; 
 querying, by the database network element, the first information to obtain a feature index list corresponding to each service identifier in the first service identifier set; 
 querying, by the database network element, the network data based on the feature index list corresponding to each service identifier in the first service identifier set, to obtain a network data eigenvalue list corresponding to each service identifier in the first service identifier set; and 
 sending, by the database network element, the network data eigenvalue list corresponding to each service identifier in the first service identifier set to the user plane network element. 
 
     
     
       7. The communication method according to  claim 6 , wherein the third information further comprises at least one of the following information: a time at which the user plane network element receives service transmission data corresponding to the first session, a session identifier of the first session, an identifier of a terminal corresponding to the first session, an internet protocol (IP) address of the terminal corresponding to the first session, a port on the terminal corresponding to the first session, an IP address of a service server corresponding to the first session, a port that is on the service server and that corresponds to the first session, and a service transmission protocol for the service transmission data corresponding to the first session. 
     
     
       8. The communication method according to  claim 1 , further comprising:
 receiving, by the control plane network element, the first information from the database network element; 
 querying, by the control plane network element, the first information based on a DNN corresponding to a first session, to obtain second information, wherein the second information comprises a second feature index list set corresponding to the DNN corresponding to the first session and a service identifier corresponding to each feature index list in the second feature index list set; and 
 sending, by the control plane network element, the second information to a user plane network element. 
 
     
     
       9. The communication method according to  claim 8 , wherein the querying, by the control plane network element, the first information based on a DNN corresponding to a first session, to obtain second information comprises:
 querying, by the control plane network element, the first information based on the DNN corresponding to the first session and at least one of a network slice type, an SSC mode, and a PDU session type that correspond to the first session, to obtain the second information. 
 
     
     
       10. The communication method according to  claim 1 , further comprising:
 sending, by a control plane network element, a DNN corresponding to a first session to the database network element; 
 receiving, by the control plane network element, second information from the database network element, wherein the second information comprises a second feature index list set and a service identifier corresponding to each feature index list in the second feature index list set, and the service identifier corresponds to the DNN; and 
 sending, by the control plane network element, the second information to a user plane network element. 
 
     
     
       11. The communication method according to  claim 10 , wherein before the receiving, by the control plane network element, second information from the database network element, the communication method further comprises:
 sending, by the control plane network element to the database network element, at least one of the following information corresponding to the first session: a network slice type, a session and service continuity SSC mode, and a packet data unit PDU session type. 
 
     
     
       12. The communication method according to  claim 1 , further comprising:
 receiving, by a user plane network element, second information from a control plane network element, wherein the second information comprises a second feature index list set and a service identifier corresponding to each feature index list in the second feature index list set; 
 receiving, by the user plane network element, service transmission data corresponding to a first session; 
 determining, by the user plane network element, a service identifier corresponding to a feature index list that is in the second feature index list set and for which an eigenvalue cannot be obtained based on the service transmission data, to obtain a first service identifier set; 
 sending, by the user plane network element, third information to a database network element, wherein the third information comprises the first service identifier set; and 
 receiving, by the user plane network element from the database network element, a network data eigenvalue list corresponding to each service identifier in the first service identifier set. 
 
     
     
       13. The communication method according to  claim 12 , wherein the third information further comprises at least one of the following information: a time at which the user plane network element receives the service transmission data corresponding to the first session, a session identifier of the first session, an identifier of a terminal corresponding to the first session, an internet protocol IP address of the terminal corresponding to the first session, a port on the terminal corresponding to the first session, an IP address of a service server corresponding to the first session, a port that is on the service server and that corresponds to the first session, and a service transmission protocol for the service transmission data corresponding to the first session. 
     
     
       14. A database network element, comprising:
 a processor, configured to obtain training data, wherein the training data comprises service transmission data and network data; 
 a transmitter, configured to send the training data to a data analytics network element; and 
 a receiver, configured to receive first information from the data analytics network element, wherein the first information comprises a first feature index list set, a service identifier corresponding to each feature index list in the first feature index list set, and a data network name (DNN) corresponding to the service identifier. 
 
     
     
       15. The database network element according to  claim 14 , wherein the transmitter is further configured to: send the first information to a control plane network element. 
     
     
       16. The database network element according to  claim 14 , wherein the receiver is further configured to receive, from a control plane network element, a DNN corresponding to a first session;
 wherein the processor is further configured to query the first information based on the DNN corresponding to the first session, to obtain second information, wherein the second information comprises a second feature index list set corresponding to the DNN corresponding to the first session and a service identifier corresponding to each feature index list in the second feature index list set; and 
 wherein the transmitter is further configured to send the second information to the control plane network element. 
 
     
     
       17. The database network element according to  claim 16 , wherein the receiver is further configured to receive, from the control plane network element, at least one of the following information corresponding to the first session: a network slice type, an SSC mode, and a PDU session type; and
 wherein the processor is specifically configured to query the first information based on the DNN corresponding to the first session and the at least one of the information corresponding to the first session, to obtain the second information. 
 
     
     
       18. The database network element according to  claim 14 , wherein the receiver is further configured to receive third information from a user plane network element, wherein the third information comprises a first service identifier set;
 wherein the processor is further configured to query the first information to obtain a feature index list corresponding to each service identifier in the first service identifier set; 
 wherein the processor is further configured to query the network data based on the feature index list corresponding to each service identifier in the first service identifier set, to obtain a network data eigenvalue list corresponding to each service identifier in the first service identifier set; and 
 wherein the transmitter is further configured to send the network data eigenvalue list corresponding to each service identifier in the first service identifier set to the user plane network element. 
 
     
     
       19. The database network element according to  claim 18 , wherein the third information further comprises at least one of the following information: a time at which the user plane network element receives service transmission data corresponding to the first session, a session identifier of the first session, an identifier of a terminal corresponding to the first session, an internet protocol IP address of the terminal corresponding to the first session, a port on the terminal corresponding to the first session, an IP address of a service server corresponding to the first session, a port that is on the service server and that corresponds to the first session, and a service transmission protocol for the service transmission data corresponding to the first session. 
     
     
       20. A data analytics network element, comprising:
 a receiver, configured to receive training data from a database network element, wherein the training data comprises service transmission data and network data; 
 a processor, configured to determine first information based on the training data, wherein the first information comprises a first feature index list set, a service identifier corresponding to each feature index list in the first feature index list set, and a data network name (DNN) corresponding to the service identifier; and 
 a transmitter configured to send the first information to the database network element.